Transcription of UNDERSTANDING AND USING ‘OTA’ OP-AMP ICs
{{id}} {{{paragraph}}}
Example: marketing
UNDERSTANDING AND USING ‘OTA’ OP-AMP ICs
Most popular OP-AMP (operational amplifier) ICs such as the 741, CA3140, and LF351, etc. give anoutput voltage that is proportional to the differencebetween the IC s two input pin voltages, and are thus known asvoltage-differencing amplifiers or VDAs. There are, however,two other basic types of op-amps that are in common use; oneof these is the type that gives an output voltage that is propor-tional to the difference between the currentsapplied to its twoinput terminals, and is thus known as a current-differencingamplifier or CDA. This type of OP-AMP was described in depthin the UNDERSTANDING and USING Norton OP-AMP ICs two-part mini-series published in this magazine. The third type ofop-amp is known as an operational transconductance amplifi-er or OTA, and acts as a variable-gain of the best known OTA ICs is the CA3080, which isof particular value in making voltage- or current-controlledamplifiers, or micro-power voltage comparators or oscillators,etc.
vided with an external input bias current, produces an in-phase current of identical value at its output terminals, as shown in Figure 5.Some CMs act as cur-
Loading..
Tags:
Information
Domain:
Source:
Link to this page:
Please notify us if you found a problem with this document:
Related search queries
Synthesis of Optimal On-Chip Baluns, Differential, Input impedance, Operator's Manual, Operator’s Manual, Input, Design Note 140, Fully, Considerations for PCB Layout and Impedance, Considerations for PCB Layout and Impedance Matching, Differential/Single-Ended Input, Dual, Analog Devices, Accuphase, MHz, 95 dB Logarithmic Amplifier AD8310